Derivative Instruments - Effect on Income Statement (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 01, 2012	Jul. 03, 2011	Jul. 01, 2012	Jul. 03, 2011
Derivative Instruments, Gain (Loss) [Line Items]
Foreign currency (loss) gain, inclusive of the impact of derivatives	$ (863)	$ (716)	$ (3,045)	$ (568)
Foreign Exchange Contract [Member] | Other Comprehensive Income (Loss) [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Recognized in OCI (effective portion)	6,583	5,190	5,368	10,181
Foreign Exchange Contract [Member] | Cost of Sales [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Reclassified from accumulated OCI into cost of sales (effective portion)	(1,122)	1,983	(1,392)	2,665
Foreign Exchange Contract [Member] | Other Income Expense Net [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Recognized in other, net	(4,457)	950	(3,631)	4,789
Foreign Exchange Contract [Member] | Other Income Expense Net [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Recognized in other, net (ineffective portion and amount excluded from effectiveness testing)	$ (21)	$ 105	$ 13	$ 163